Snug
What it means
Meaning 1
Comfortably warm, sheltered, and close-fitting.
Reach for it when describing a small place or arrangement whose closeness creates security
The reading nook stayed snug while rain rattled against the roof.
Meaning 2
Fitting closely enough to stay secure without harmful pressure.
Reach for it when describing a precise physical fit that is firm but still comfortable
The wooden peg made a snug fit in the repaired joint.